Question about Dell Inspiron 2200 Notebook

1 Answer

"denial of service": email, firefox, etc. cannot find server..

This computer can reach most sites... but a malicious hacker did something that is preventing connection to only certain site servers.  and use of Firefox to anything.   I've run Registry Mechanic, Symantec, AVG.. and cleaned up a lot.. but this last problem still exists.  It will open, but trying to log on, presents "This page not available"... same thing on Hotmail.. Absolutely no way to log into email. 

(Can be accessed on another computer..)

Has this been done in the Config?? or where??

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 20 answers of more than 400 characters.


    An expert who has answered 20 questions.

  • Expert
  • 110 Answers
Re: "denial of service": email, firefox, etc. cannot find...

What told this was a "denial of service"?

Some hackers use DoS (above) it's considered the worst thing you can download, they can go from keylogging your PC, from taking over your pc anytime they like, and using your bandwidth which is called DDOS.

This is a very compllicated thing to get ride of,

One way you can test to see if your a victum of this is to check the port, here is how:

To open the MS Dos screen go to:
Start>Run>type "cmd" and press enter (without quotes)

All of the IRC Zombie/Bots open and maintain static connections to remote IRC chat servers whenever the host PC is connected to the Internet. Although it is possible for an IRC chat server to be configured to run on a port other than "6667", every instance I have seen has used the IRC default port of "6667".

Consequently, an active connection to an IRC server can be detected with the following command:

netstat -an | find ":6667"

Open an MS-DOS Prompt window and type the command line above, then press the "Enter" key. If a line resembling the one shown below is NOT displayed, your computer does not have an open connection to an IRC server running on the standard IRC port. If, however, you see something like this:


. . . then the only question remaining is how quickly you can disconnect your PC from the Internet!

A second and equally useful test can also be performed. Since IRC servers generally require the presence of an "Ident" server on the client machine, IRC clients almost always include a local "Ident server" to keep the remote IRC server happy. Every one of the Zombie/Bots I have examined does this. Therefore, the detection of an Ident server running in your machine would be another good cause for alarm. To quickly check for an Ident server, type the following command at an MS-DOS Prompt:

netstat -an | find ":113 "

As before, a blank line indicates that there is no Ident server running on the default Ident port of "113". (Note the "space" after the 113 and before the closing double-quote.) If, however, you see something like this:


. . . then it's probably time to pull the plug on your cable-modem!

Note that a Windows IRC client program running in the PC will generate false-positive reports since these are tests for IRC client programs. So be sure to completely exit from any known IRC client programs BEFORE performing the tests above.


Posted on Oct 18, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Why can't I open my email?

Hi Elizabeth
Try a different computer or call your Email Provider to see if it's at their end. They may have a server problem.

There are usually 2 ways to get to your email.
1 Using a Browser to access your account with your provider.
......A Browser like IE or Safari or Firefox.
2 Use an Application on your computer to access your account.
......."Client" software Such as Outlook, Apple Mail etc.

Email "client" software like Outlook has a settings section.
Inside there you can enter separate details for Incoming Mail and Outgoing Mail.

Sep 22, 2015 | PC Laptops


Tips To Protect your computer from Malware

Each year, the damages against malicious computer software costing American companies billions of dollars. These expenditures are not only in lost productivity and permanent loss of critical business data. Presumably, most if not all infections can be prevented through understanding, education and adequate protection. Do not be the next victim, taking the necessary steps now to ensure the protection and recovery, should the worst happen.<br /> <br /> First, try to understand the computer of <b>malware</b>. Often, the term virus is used to describe all malicious code. Technically speaking, there are viruses, rootkits, trojans, worms and spyware. Method of attack can vary, but all types of<b> malware</b>.<br /> <br /> A virus is a program that runs itself and copies itself. It can affect the files or the boot sector and erases all your data. The "Melissa" and "I love you" virus has gained the attention of the world.<br /> <br /> A rootkit or a Trojan to access your system without your knowledge. often resembles a piece of useful software, but in reality they are back, or traps.<br /> A computer worm is a computer program capable of replicating. It uses a network to send copies of itself to other nodes. When you are on your system, worms do not need to attach to another program can run. Worms cause a denial of service attack by making the network unusable. General network to target and attack the virus files.<br /> <br /> Spyware is software that is installed on a personal computer to intercept or take control of your PC. Spyware can hijack a computer and cause serious problems in the collection and transmission of personal data, loading of unwanted software or redirect browsers to malicious sites.<br /> <br /> <b>Protect yourself:</b><br /> <br /> Having a good backup in case you need to restore<br /> Use a firewall<br /> Keep your system updated with the latest security patches<br /> Installing and updating anti-virus and anti-spyware software (see below for choice)<br /> Do not open e-mail in an anonymous, unknown or suspicious sources<br /> Do not download files or software, anonymous, unknown or suspicious sources<br /> Do not have access to suspect sites or promiscuity<br /> Scan your system for malicious software (see below for choice)<br /> It is worth repeating - make sure you have a good backup to restore your entire system if necessary<br /> If you believe you have been assaulted, act quickly to isolate the infected machine and remove the<b> <a href="">malware</a></b>.

on Mar 04, 2011 | PC Laptops

1 Answer

How do I remove 502 Bad Gateway from my computer

Generally, a 502 error is not something you can fix. It means that one or more of the servers that fulfill your request for a web page aren't sending back what's expected. (It's quite typical for a web site to grab data from other places to render the page you are looking at. The main text usually comes from the site you are looking at, but a lot of the times, the pictures, video, comments section, etc., might be hosted on another machine altogether. The ads placed on web pages typically come from outside servers.)

If this is the only web site on which you are getting a 502 error, it probably is the site. However, I was able to go to (using FIrefox 19.0.2 and Chrome Version 25.0.1364.172 m) with no issues, which makes me wonder. If you are getting the error when visiting a lot of sites, it's probably time to do some more digging on your end. Have you tried power cycling the router that serves the Internet at your place? It's possible that the site has moved to a new server and the router has some of the old web site IPs in it's routing table. That is, it might not be your laptop, but in the router or further upstream toward the web site.

Jul 02, 2014 | PC Laptops

1 Answer

Stacey dash pics

Sounds like someone managed to get a "backdoor virus" on your computer that allows a third party access to your computer for sending spam, Denial of Service Attacks, etc....

That activity consumes computer resources slowing down your operations to a crawl.

Most good anti-viruses will remove them I use Norton 360 and a few others to catch anything the other misses. I Use Norton 360 for the firewall...

Feb 23, 2014 | HP PC Laptops

2 Answers

Email hacker v3.4.6 activation code

We don't promote hack codes on this site.

Nov 21, 2013 | PC Laptops

1 Answer

Cannot access my hotmail a/c comes up server not found

Servers provide information for websites, hold Web pages, protect other computers from infection, provide authentication services and hold large numbers of files. Servers also connect email systems together. The average Web surfer encounters many servers in a day without realizing it. The mention of servers only arises when things go wrong. For example if the Hotmail Mail Server is inaccessible the user will receive an error message that the server cannot be found.

Client-Server In standard network communication all computers fall into one of two categories: clients and servers. Servers are bigger computers with large storage capacity and fast processing power. A server centralizes services that enable applications running on client computers to have access to more resources than their own computer could handle. The client is the local computer, the one the user accesses. The local computer, the client, contacts a remote computer, the server, with a request for a service. If the server is available, it responds with the requested service or resource. b> Hotmail Hotmail uses several types of servers. The screen the user accesses is actually an email client. It lists delivered email and enables users to write new emails. Originally, this program was always resident on the user's computer. Hotmail revolutionized the provision of email services by making this interface available on a website. The website itself is hosted on a Web server. The chain of clients and servers in a simple email transaction with email can soon become complicated. The user, on a home computer, is sitting at the client. The client program is the Web browser. The Web browser contacts a Web server to get and display the Hotmail page. b> Hotmail Servers b> Although the Hotmail page is resident on a server, it is a mail client and is also called a Mail User Agent, or MUA. It sends all outbound emails to a server called a Mail Submissions Agent, or MSA. The MSA sends the email to a server called a Mail Exchange, or MX, which then forwards it to another server called a Mail Delivery Agent, where the email sits until the user commands the mail client to go and find any new emails. b> Missing Server b> The server that Hotmail reports it was not able to find could be the Mail Submissions Agent, the Mail Exchange, or the Mail Delivery Agent. If the message arise during the sending of an email, the likelihood is that it is the Mail Submissions Agent that could not be contacted. If the error message occurs when Hotmail goes to find new received emails, it is likely to be the Mail Delivery Agent that could not be contacted. In either case, the user's connection is with the Web server and not either of these servers. There is little that the user can do to fix this problem other than try again later.

Feb 14, 2013 | HEWLETT-PACKARD Compaq Presario CQ56-129NR...

1 Answer

Cannot get facebook to open.

FB server is not working right its sending back denial of service. If your talking about the last few days anyway.

Aug 11, 2011 | PC Laptops

2 Answers

The proxy server is refusing connections

If it's a free proxy I would be very cautious. Many are run by hackers and will plant bots and other malware on your computer.

Jun 08, 2010 | Dell Inspiron 1525 Notebook

2 Answers

Virus has frozen my boot-up.

save your data and re-formate the drive followed by installtion of windows will solve your problem.

Oct 27, 2008 | Dell Latitude C610 Notebook

2 Answers

Can not send e-mail

Have you made any changes to your pop3 server?. Look at your option in outlook it is under accounts. And check to make sure the server setup is right for your email. Most times the mail server and pop server are the same. Like
incoming pop3 (server
outgoing smtp( server

Mar 02, 2008 | PC Laptops

Not finding what you are looking for?
Dell Inspiron 2200 Notebook Logo

107 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell PC Laptops Experts


Level 3 Expert

1038 Answers

Sudeep Chatterjee
Sudeep Chatterjee

Level 3 Expert

3267 Answers

Donna Sander

Level 2 Expert

193 Answers

Are you a Dell PC Laptop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides